The Technique of Travel : Page 117
One-step.—This is the most used touring maneuver.
It is simply walking, or rather gliding, on skis, and its mastery is the essence of touring. Every extra pound of energy the skier puts into a step is multiplied thousands of times before the day is over. Thus, wherever possible, the skis should be slid, not lifted; downhill tension should be released to permit this. Poles must be functional, not ornamental. The angle of ascent should not be so great that it unduly tires the ankles. Other than for these suggestions, this manual cannot attempt to teach the skier to walk. Particular and continued attention to efficient use of his own physical equipment must give each skier his own individual stride.